Cooling device for a lubricating oil station of a construction machine

Abstract

This application relates to the field of lubricating oil station cooling technology, specifically a cooling device for a lubricating oil station in engineering machinery. The device includes a water-cooled box with a dual-chamber lubricating oil tank installed on one side. Inverted U-shaped heat exchange tubes are installed on the side wall of the water-cooled box facing the dual-chamber lubricating oil tank. A reciprocating moving mechanism is installed at the top center of the water-cooled box. Through the coordinated design of the reciprocating moving mechanism, lifting mechanism, rotating mechanism, and flushing and brushing mechanism, this application enables the cooling device for the lubricating oil station in engineering machinery to automatically clean impurities from the surface of the heat exchange tubes via flushing and brushing. This avoids the cumbersome disassembly and manual cleaning operations required for cleaning impurities on the outer wall of the heat exchange pipes, resulting in higher cleaning efficiency and reduced manual labor intensity, facilitating efficient cleaning and use of the lubricating oil station cooling device.

Description

Technical Field

[0001] This application relates to the field of lubricating oil station cooling technology, and in particular to a cooling device for a lubricating oil station of engineering machinery. Background Technology

[0002] During the operation of construction machinery, a lubrication station is required to supply lubricating oil to reduce friction between parts. However, the lubricating oil in the station absorbs heat from the parts during circulation, causing it to heat up. This increased temperature not only makes the lubricating oil more susceptible to oxidation and damage but also reduces its viscosity, thus failing to achieve the desired lubrication effect. Therefore, it is necessary to cool down the lubricating oil in the construction machinery's lubrication station.

[0003] Currently, the cooling of lubricating oil in engineering machinery lubrication stations is mainly achieved by using water-cooled heat exchangers. The water-cooled heat exchanger has two fluid flow channels: one for lubricating oil and one for cooling water. By allowing the filtered lubricating oil in the lubrication station to flow through the water-cooled heat exchanger and exchange heat with the cold water, the lubricating oil in the lubrication station can be cooled.

[0004] While existing water-cooled heat exchangers in lubrication oil stations can effectively cool lubricating oil, over time, impurities accumulate on the heat exchange pipes. These impurities reduce the cooling efficiency of the lubricating oil, necessitating cleaning of the outer walls of the heat exchange pipes. Currently, cleaning involves disassembling the water-cooled heat exchanger and manually cleaning it with a handheld brush. This process is cumbersome, inefficient, and labor-intensive, hindering the efficient cleaning capabilities of water-cooled heat exchangers for lubrication oil station cooling. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the purpose of this application is to provide a cooling device for a lubricating oil station of engineering machinery that can conveniently clean impurities on the outer wall of the heat exchange pipes inside the water-cooled box through automatic flushing and brushing, with high cleaning efficiency and low manual labor intensity.

[0006] The above-mentioned objective of this application is achieved through the following technical solution:

[0007] A cooling device for a lubrication oil station of engineering machinery includes a water-cooled box. A dual-chamber lubrication oil tank is installed on one side of the water-cooled box. An inverted U-shaped heat exchange tube is installed on the side wall of the water-cooled box facing the dual-chamber lubrication oil tank. A reciprocating moving mechanism is installed at the middle of the top of the water-cooled box. The reciprocating moving mechanism includes a slide, a mounting frame, a screw, and a motor. Two sliding holes are symmetrically opened on both sides of the mounting frame at the top of the water-cooled box. A lifting mechanism is installed on one side of the top of the slide. The lifting mechanism includes an electric telescopic rod and a lifting plate. A rotating mechanism is symmetrically installed on both sides of the top of the lifting plate. The rotating mechanism includes a motor and a rotating shaft. The rotating mechanism is located directly above each sliding hole. A flushing and brushing mechanism is installed between the bottom end of the rotating shaft and the other side of the top of the slide. The flushing and brushing mechanism includes a three-way pipe, a high-pressure water pump, a water storage tank, a delivery hose, a water spray cover, and cleaning brushes.

[0008] Optionally, an oil inlet pipe is welded to the top of the dual-chamber lubricating oil tank, and an oil outlet pipe is welded to the middle of the bottom of the dual-chamber lubricating oil tank. The two chambers inside the dual-chamber lubricating oil tank are connected by the heat exchange pipe.

[0009] Optionally, the heat exchange tube is located inside the water-cooled box, with an inlet pipe welded to one side of the top of the water-cooled box and an outlet pipe welded to the other side of the bottom of the water-cooled box.

[0010] Optionally, the mounting frame is bolted to the top center of the water-cooled tank, the motor is mounted on the center of one side wall of the mounting frame, the screw is connected to the power output end of the motor, and the slide is mounted on the screw.

[0011] Optionally, the screw is rotatably engaged with the mounting frame, the screw passes through the slide and is threadedly connected to the slide, and the slide is slidably engaged with the mounting frame.

[0012] Optionally, the electric telescopic rod is mounted on the top of the slide block, and the lifting plate is bolted to the telescopic part of the electric telescopic rod.

[0013] Optionally, the second motor is bolted to the lifting plate, and the rotating shaft is installed between the second motor and the water spray cover.

[0014] Optionally, the water storage tank is installed on one side of the top of the slide, the high-pressure water pump is installed on the water storage tank, the three-way pipe is connected to the outlet of the high-pressure water pump, and the delivery hose is connected between the water spray cover and the three-way pipe.

[0015] Optionally, the water spray cover is bolted to the bottom end of the rotating shaft, the width of the water spray cover is smaller than the width of the sliding hole, the cleaning brush strip is adhered to the water spray cover, and the water spray cover has an inclined nozzle facing the surface of the heat exchange tube.

[0016] In summary, this application includes at least one of the following beneficial technical effects:

[0017] This utility model, through the coordinated design of a reciprocating moving mechanism, a lifting mechanism, a rotating mechanism, and a flushing and brushing mechanism, enables the cooling and heat-reducing device for lubricating oil stations of engineering machinery to automatically clean impurities on the surface of heat exchange tubes by flushing and brushing. This avoids the tedious disassembly and manual cleaning operations required when cleaning impurities on the outer wall of heat exchange pipes, resulting in higher cleaning efficiency of impurities on the surface of heat exchange tubes inside the device, less manual labor intensity, and convenient efficient cleaning and use of the cooling and heat-reducing device for lubricating oil stations. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure provided in the embodiments of this application;

[0019] Figure 2 This is a main sectional view provided in an embodiment of this application;

[0020] Figure 3 This is a right sectional view of the water-cooled box provided in the embodiment of this application;

[0021] Figure 4 This is provided by the embodiments of this application. Figure 1 Enlarged view of point A in the middle;

[0022] Figure 5 This is a schematic diagram of the structure of the water spray cover and cleaning brush provided in the embodiments of this application.

[0023] Explanation of reference numerals in the attached diagram: 1. Water inlet pipe; 2. Oil inlet pipe; 3. Dual-chamber lubricating oil tank; 4. Oil outlet pipe; 5. Water outlet pipe; 6. Water-cooled box; 7. Reciprocating moving mechanism; 71. Slide seat; 72. Mounting frame; 73. Screw; 74. Motor 1; 8. Lifting mechanism; 81. Electric telescopic rod; 82. Lifting plate; 9. Heat exchange tube; 10. Rotating mechanism; 101. Motor 2; 102. Rotating shaft; 11. Flushing and brushing mechanism; 111. T-joint pipe; 112. High-pressure water pump; 113. Water storage tank; 114. Delivery hose; 115. Water spray cover; 116. Cleaning brush strip; 12. Sliding hole. Detailed Implementation

[0024] The present application will be further described in detail below with reference to the accompanying drawings.

[0025] To better understand the technical solutions presented in the embodiments of this application, the working principle of the existing water-cooled heat exchanger for cooling and temperature reduction in lubricating oil stations will be introduced first.

[0026] The existing water-cooled heat exchanger for cooling lubricating oil stations mainly has two fluid flow channels: one for lubricating oil and one for cooling water. By allowing the filtered lubricating oil in the lubricating oil station to flow through the water-cooled heat exchanger and exchange heat with the cold water, the lubricating oil in the lubricating oil station can be cooled down.

[0027] Please see Figures 1-5 This application discloses a cooling device for a lubrication oil station of engineering machinery, comprising a water-cooled box 6, a double-chamber lubrication oil tank 3 installed on one side of the water-cooled box 6, an inverted U-shaped heat exchange tube 9 installed on the inner side wall of the water-cooled box 6 facing the double-chamber lubrication oil tank 3, a reciprocating moving mechanism 7 installed at the top center of the water-cooled box 6, the reciprocating moving mechanism 7 including a slide 71, a mounting frame 72, a screw 73 and a motor 74, two sliding holes 12 symmetrically opened on both sides of the mounting frame 72 at the top of the water-cooled box 6, and a lifting mechanism installed on one side of the top of the slide 71. 8. The lifting mechanism 8 includes an electric telescopic rod 81 and a lifting plate 82. A rotating mechanism 10 is symmetrically installed on both sides of the top of the lifting plate 82. The rotating mechanism 10 includes a motor 101 and a rotating shaft 102. The rotating mechanism 10 is located directly above each sliding hole 12. A flushing and brushing mechanism 11 is installed between the bottom end of the rotating shaft 102 and the other side of the top of the slide block 71. The flushing and brushing mechanism 11 includes a three-way pipe 111, a high-pressure water pump 112, a water storage tank 113, a delivery hose 114, a water spray cover 115, and a cleaning brush 116.

[0028] Specifically, when cleaning impurities on the surface of the heat exchange tubes 9 inside the water-cooled box, the water in the water-cooled box 6 needs to be drained first. Then, under the action of motor 101, the spray nozzle 115 is rotated to a position parallel to the sliding hole 12. Next, under the action of the electric telescopic rod 81, the spray nozzle 115 is extended into the water-cooled box 6. After the spray nozzle is inserted, motor 101 is reversed. After reversing, motor 101 will rotate the spray nozzle 115 90° under the action of the rotating shaft 102, ensuring that the cleaning brush strips 116 and the built-in flushing head on the spray nozzle 115 are directly facing the surface of the heat exchange tubes 9. Then, simply start the high-pressure water pump 112 and motor 74 to clean the surface of the heat exchange tubes 9 with high-pressure water. Pump 112 sprays cleaning water from water tank 113 onto the surface of heat exchange tube 9 via spray nozzle 115, thus cleaning impurities on the surface of heat exchange tube 9 under the impact of high-pressure water flow. Simultaneously with the spraying of high-pressure water flow, motor 74 causes screw 73 to rotate. After screw 73 rotates, slide 71 moves back and forth. During the back and forth movement of slide 71, cleaning brush 116 is used to brush and clean impurities on the surface of heat exchange tube 9. The cleaned waste falls into water cooling box 6 and is eventually discharged through water outlet pipe 5. The impurities adhering to cleaning brush 116 after cleaning can be lifted and cleaned through sliding hole 12 after the surface of heat exchange tube 9 is cleaned.

[0029] Please see Figures 1-2 The top of the dual-chamber lubricating oil tank 3 is welded with an oil inlet pipe 2, and the middle of the bottom of the dual-chamber lubricating oil tank 3 is welded with an oil outlet pipe 4. The two chambers inside the dual-chamber lubricating oil tank 3 are connected by a heat exchange pipe 9.

[0030] As one implementation method, the oil inlet pipe 2 is mainly used to conveniently introduce the filtered lubricating oil from the lubrication oil station of the construction machinery into the dual-chamber lubricating oil tank 3, and the oil outlet pipe 4 is mainly used to conveniently discharge the lubricating oil from the dual-chamber lubricating oil tank 3.

[0031] Please see Figures 1-3 The heat exchange tube 9 is located inside the water-cooled box 6. A water inlet pipe 1 is welded to one side of the top of the water-cooled box 6, and a water outlet pipe 5 is welded to the other side of the bottom of the water-cooled box 6.

[0032] In one implementation, the water inlet speed of the inlet pipe 1 is the same as the water outlet speed of the outlet pipe 5, and under normal water cooling conditions, the liquid level in the water cooling box 6 is higher than the height of the heat exchange tube 9.

[0033] Please see Figures 1-3 The mounting frame 72 is bolted to the top center of the water-cooled box 6. The motor 74 is mounted on the center of one side wall of the mounting frame 72. The screw 73 is connected to the power output end of the motor 74. The slide 71 is mounted on the screw 73.

[0034] In one implementation, the motor 74 drives the screw 73 to rotate, which in turn causes the slide 71 to slide and adjust easily along the mounting frame 72 under the action of thread transmission. While the slide 71 is moving, the lifting mechanism 8, the rotating mechanism 10 and the water spray cover 115 are moved and adjusted synchronously.

[0035] Please see Figures 1-4 The screw 73 is rotatably engaged with the mounting frame 72, the screw 73 passes through the slide 71 and is threadedly connected to the slide 71, and the slide 71 is slidably engaged with the mounting frame 72.

[0036] As one implementation method, the slide 71 is mainly used to provide an installation base for the lifting mechanism 8 and the water storage tank 113.

[0037] Please see Figures 1-4 The electric telescopic rod 81 is installed on the top of the slide block 71, and the lifting plate 82 is installed on the telescopic part of the electric telescopic rod 81 by bolts.

[0038] As one implementation method, the electric telescopic rod 81 will enable the lifting plate 82 to be raised and lowered conveniently after being started, so as to enable the water spray cover plate 115 to be easily moved in and out of the water cooling box 6 according to actual use needs.

[0039] Please see Figures 1-3 Motor 2 101 is bolted to lifting plate 82, and rotating shaft 102 is installed between motor 2 101 and water spray cover plate 115.

[0040] In one implementation, after the motor 101 drives the rotating shaft 102 to rotate, the cleaning brush 116 on the water spray cover 115 will come into contact with the upper and lower surfaces of the heat exchange tube 9, and at the same time, the built-in water spray head will be tilted and facing the surface of the heat exchange tube 9 to ensure that the high-pressure water after spraying can fully wash away the impurities on the surface of the heat exchange tube 9.

[0041] Please see Figures 1-4 The water storage tank 113 is installed on one side of the top of the slide 71, the high-pressure water pump 112 is installed on the water storage tank 113, the three-way pipe 111 is connected to the outlet of the high-pressure water pump 112, and the delivery hose 114 is connected between the spray cover plate 115 and the three-way pipe 111.

[0042] As one implementation method, the high-pressure water pump 112 is mainly used to transport water in the water storage tank 113 into the spray hood 115 through the three-way pipe 111 and the delivery hose 114. The water entering the spray hood 115 will be sprayed onto the surface of the heat exchange tube 9 through its own spray head to clean the impurities on the surface of the heat exchange tube 9.

[0043] Please see Figure 2 , Figure 3 and Figure 5The water spray cover 115 is bolted to the bottom end of the rotating shaft 102. The width of the water spray cover 115 is smaller than the width of the sliding hole 12. The cleaning brush strip 116 is attached to the water spray cover 115. The water spray cover 115 has an inclined nozzle facing the surface of the heat exchange tube 9.

[0044] As one implementation method, the width of the water spray cover 115 is made smaller than the width of the sliding hole 12, so that after the water spray cover 115 rotates 90°, the water spray cover 115 can be easily lifted out of the sliding hole 12, which facilitates subsequent cleaning.

[0045] The specific working principle is as follows: When cooling the lubricating oil of construction machinery, the oil inlet pipe 2 is first connected to the lubricating oil delivery pipeline after filtration in the lubricating oil station, and the water inlet pipe 1 is connected to the external cold water storage tank. After the lubricating oil enters the upper cavity of the double-chamber lubricating oil tank 3 through the oil inlet pipe 2, the lubricating oil will enter the lower cavity of the double-chamber lubricating oil tank 3 through the heat exchange pipe 9. When the lubricating oil passes through the heat exchange pipe 9, it will exchange heat with the cold water in the water-cooling tank 6, thereby achieving the cooling of the lubricating oil. The cooled lubricating oil is finally discharged through the oil outlet pipe 4. After the device has been used for a period of time, it needs to be cooled. When cleaning impurities on the surface of the heat exchange tubes 9 inside the water-cooled box 6, the water inside the water-cooled box 6 is first drained. Then, under the action of motor 101, the water spray cover 115 is rotated to a position parallel to the sliding hole 12. Then, under the action of electric telescopic rod 81, the water spray cover 115 is extended into the water-cooled box 6. After the water spray cover 115 is extended into the water-cooled box 6, motor 101 is reversed. After the motor 101 reverses, under the action of rotating shaft 102, the water spray cover 115 is rotated 90° to ensure that the cleaning brush strips 116 on the water spray cover 115 and the built-in flushing head are directly facing the surface of the heat exchange tubes 9. Next, simply start the high-pressure water pump 112 and the motor 74. Under the action of the high-pressure water pump 112, the cleaning water in the water storage tank 113 will be sprayed onto the surface of the heat exchange tube 9 through the spray nozzle 115. This allows the impurities on the surface of the heat exchange tube 9 to be cleaned under the impact of the high-pressure water flow. Simultaneously with the spraying of the high-pressure water flow, the motor 74 will cause the screw 73 to rotate. The rotation of the screw 73 will cause the slide 71 to move back and forth. During this reciprocating movement, the slide 71 will use the cleaning brush 116 to brush and clean the impurities on the surface of the heat exchange tube 9. The cleaned waste... The slag will fall into the water-cooled tank 6 and be discharged through the water outlet pipe 5. The impurities adhering to the cleaning brush strip 116 after cleaning can be lifted and cleaned through the sliding hole 12 after the surface of the heat exchange tube 9 is cleaned. Under the action of this lubricating oil cooling device, the surface impurities of the heat exchange tube 9 can be cleaned by automatic flushing and brushing, avoiding the tedious disassembly and manual cleaning operation when cleaning the impurities on the outer wall of the heat exchange tube 9. This makes the cleaning efficiency of the surface impurities of the heat exchange tube 9 in the device higher and the labor intensity less, which facilitates the efficient cleaning and use of the lubricating oil station cooling device.

[0046] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A cooling device for a lubrication oil station of engineering machinery, characterized in that: The system includes a water-cooled box (6), on one side of which is a dual-chamber lubricating oil tank (3). An inverted U-shaped heat exchange tube (9) is installed on the inner wall of the water-cooled box (6) facing the dual-chamber lubricating oil tank (3). A reciprocating moving mechanism (7) is installed at the top center of the water-cooled box (6). The reciprocating moving mechanism (7) includes a slide (71), a mounting frame (72), a screw (73), and a motor (74). Two sliding holes (12) are symmetrically opened on both sides of the mounting frame (72) at the top of the water-cooled box (6). A lifting mechanism (8) is installed on one side of the top of the slide (71). The lifting mechanism (8) includes an electric motor. The telescopic rod (81) and the lifting plate (82) are provided. A rotating mechanism (10) is symmetrically installed on both sides of the top of the lifting plate (82). The rotating mechanism (10) includes a motor (101) and a rotating shaft (102). The rotating mechanism (10) is located directly above each sliding hole (12). A flushing and brushing mechanism (11) is installed between the bottom end of the rotating shaft (102) and the other side of the top of the slide block (71). The flushing and brushing mechanism (11) includes a three-way pipe (111), a high-pressure water pump (112), a water storage tank (113), a delivery hose (114), a water spray cover (115), and a cleaning brush (116).

2. The cooling device for a lubrication oil station of engineering machinery according to claim 1, characterized in that: The top of the dual-chamber lubricating oil tank (3) is welded with an oil inlet pipe (2), and the middle of the bottom of the dual-chamber lubricating oil tank (3) is welded with an oil outlet pipe (4). The two chambers inside the dual-chamber lubricating oil tank (3) are connected by the heat exchange pipe (9).

3. The cooling device for a lubrication oil station of engineering machinery according to claim 2, characterized in that: The heat exchange tube (9) is located inside the water-cooled box (6). A water inlet pipe (1) is welded to one side of the top of the water-cooled box (6), and a water outlet pipe (5) is welded to the other side of the bottom of the water-cooled box (6).

4. The cooling device for a lubrication oil station of engineering machinery according to claim 1, characterized in that: The mounting frame (72) is bolted to the top center of the water-cooled box (6), the motor (74) is mounted on the center of one side wall of the mounting frame (72), the screw (73) is connected to the power output end of the motor (74), and the slide (71) is mounted on the screw (73).

5. The cooling device for a lubrication oil station of engineering machinery according to claim 4, characterized in that: The screw (73) is rotatably engaged with the mounting frame (72), the screw (73) passes through the slide (71) and is threadedly connected to the slide (71), and the slide (71) is slidably engaged with the mounting frame (72).

6. The cooling device for a lubrication oil station of engineering machinery according to claim 1, characterized in that: The electric telescopic rod (81) is installed on the top of the slide (71), and the lifting plate (82) is installed on the telescopic part of the electric telescopic rod (81) by bolts.

7. The cooling device for a lubrication oil station of engineering machinery according to claim 1, characterized in that: The second motor (101) is bolted to the lifting plate (82), and the rotating shaft (102) is installed between the second motor (101) and the water spray cover plate (115).

8. The cooling device for a lubrication oil station of engineering machinery according to claim 1, characterized in that: The water storage tank (113) is installed on one side of the top of the slide (71), the high-pressure water pump (112) is installed on the water storage tank (113), the three-way pipe (111) is connected to the outlet end of the high-pressure water pump (112), and the delivery hose (114) is connected between the water spray cover (115) and the three-way pipe (111).

9. The cooling device for a lubrication oil station of engineering machinery according to claim 8, characterized in that: The water spray cover (115) is bolted to the bottom end of the rotating shaft (102). The width of the water spray cover (115) is smaller than the width of the sliding hole (12). The cleaning brush (116) is attached to the water spray cover (115). The water spray cover (115) has an inclined nozzle facing the surface of the heat exchange tube (9).

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